Eyeleting-machine.



Patented May 1917.

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F. I.. HARIVION.

EYELETINVG MACHINE.

Y APPLICATION FILED APILZO'. I9I4. L.

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EYELETING MACHINE.

APPLICATION FILED APR.20.'19:4.

1,224,46.. Patented May l, 1917.

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7TH@ @TATES FATNT @Flfliti FRANK L. HARMON, OF BEVERLY, MASSACHUSETTS, ASSIGNGR TO SINGER MANUFAC- TURING CGMPANY, F ELIZABETH, NEW JERSEY, A CORORATIGN OF NEW JERSEY.

EYELETNG-MACHINE.

Application filed April 20, '1914.

To all whom t may concern.'

Be it known that I, FRANK L. Harmon, a citizen of the lUnited States, and resident of Beverly, county of Essex, Commonwealth of hilassachusetts, have invented an .lmprovement in Eyeleting-Machines, of which the following description, in connection with the accompanying drawings, is a specification, like characters on the drawings representing like parts in eachof the several views.

This invention relates to eyeleting machines and particularly to that type of such machines where the material is automatically fed between successive eyeleting operations to space the'eyelets. ln general the invention presents an improved form of machine of this type wherein a telescopically arranged set and punch are mounted for operation wholly at one side of a material support to punch the eyelet holes in the material, and position and clench the eyelets in such holes with a periodic lateral nievement of the punch to feed the material and space the eyelets. ln the present improved form of machine, I dispense entirely with the spindle-and-set mechanism hitherto considered necessary in this type of machine and mount all the operative parts on one side of the material support, the punch performing the three-fold functions of punching the material, feeding it laterally, and acting instead of a separate spindle to accurately aline and position the eyelet for the setting operation. riccording` to the present invention l perform the punching and setting operations with the punch and set in the same lateral position and without any intervening feed or spacing movement of the material, such feed being accomplished after the setting operation by a lateral movement of the punch while still engaged through the material, followed by a withdrawal of the punch and its return to initial or punching position. Since the punching and setting operations are therefore performed against the same part of the material support, t'. e., since the punch-block is within, or superposed on, the clenching surface, l preferably provide a punch-block surface and a clenching surface on relatively movable elements adapted to be positioned one over the other for one of the operations of punching and clenching, and then relatively moved to uncover the other Specification of Letters Patent.

lllatented May i, T1917.

serial No. 833,013.

surface for the other of said operations. To this end in the present illustrative embodiment l provide a punch-block surface on a plate mounted and connected for periodic movement over the surface whereon the eyelets are clenched to cover the clenching surface and present its own face to coact with the punch, and then to be withdrawn to uncover the clenching surface for cooperation with the set. I believe this arrangement of relatively movable elements one bearing a punch-block surface and the other a clenching surface, whereby one of said elements is adapted to cover the operative surface of the other element and present its own surface in operative position at one time, and then be moved to uncover the surface of the other element to present it in operative position at another time, to be broadly new in machine of this type and I therefore desire the present embodiment and its use in the present relation to be considered as illustrative and not restrictive, reference being had to the broader of the appended claims to indicate the scope of this part of the invention. The invention will be better understood from the following detailed description takenv in connection with the accompanying drawings and will be thereafter pointed out in the appended claims.

Referring to the drawings:

lFigure l is a side elevation of a machine wherein my invention is embodied;

Fig. 2 is a plan view thereof;

3 is a detail vertical section of the immediate working parts including the telescopic punch and set and the clenching surface with the superposed movable punchblock or plate;

Fig. ffl is a detail vertical section showing the means for adjusting the clencliing surface; and l 1 Fig. 5 is a fragmentary detail vertical section showing a modified'form of the invention wherein the punch-blockand clenching surface are formed on the same element and without relative movement.

A material support is indicated at l as a solid imperforate block havino' its top face recessed. at 2 to receive a plate or block 3 on which the clenching surface is formed. rlhis plate has wedge faces a formed on its underside for engagement by corresponding wedge faces on an adjusting plate 5 which is adapted to be forced. in underneath the plate 3 by a screw 6 threaded into the support; the plate 3 being secured by screws 7 set into the support which are adjusted in conjunction with the manipulation of the adjusting screw 6 to position the clenching surface on plate 3 properly for cooperation with the set. The material support is also provided with gage member 8 adjustably held to the support by screws 9 which are,

passed through elongated slots 10 in .the gage, which has an upturned end 11 against which the material a is positioned.

A tubular punch is indicated at 12 slidably fitted to telescope in a tubular set 13, this set having an annular concave formation 14 to it the formed iiange of the eyelet, rlhe set is Mllustably fitted into the end of a lever 15, having threaded engagement therewith eS. indicated at 16, and it is locked in adjusted position by a lock nut 17 co-acting with the lower face of the lever. The top ,of punch 12 has en enlarged head 18 which normally ,rests on the top" of the lever end 15 being held in this position with the lower end ofthe punch projecting some little distance beyond the set by coil spring 19, the ends of which are respectively engaged with the heed 18 and With the lever. The lever @11d 15 is mounted for movement toward and from the material support and also for periodic lateral movement to feed the material, and for this purpose it is mounted to turn on a vertical axis 20 which carries a bearing for a horizontal journal 21. For effecting the required movements of lever 15 the driving shaft 22 of the machine has iiXed thereon a peripheral cam 23 and adjacent thereto a lateral faced cam 24 which vmutually control said lever byv engaging with a ball formation 25 at the inner end thereof, this ball formation being held against the peripheral cam face by a fiat spring 26 fixed to the horizontal journal support and engaging underneath the outer portion of the lever, while the ball formation is held against the lateral cam 24 by a tension spring 2'( engaged at 011e end with the outer portion of the lever and at its other end with a holder on a post 28 upstanding from the base. 1 provide means whereby the punch is positively held advanced in position for the punching, this being shown in the present embodiment as a lever 29 with an end 30 engaging the punch head 18. When in punching position, this lever being fulcrumed at v31 to a bearing support 3.2 on the base and having an inner extension beyond said fulcrum equipped with a roll 3 3 adapted to engage a peripheral cam 34 on shaft 22 being held in engagement therewith by a coil spring 35. fixed to the lever end and to the basel The parts as shown in Figs. 1 and 2 are in punching position, it being understood that the lever end 15- has just been moved laterally to bring the punch to punching position by an inclined Portion 24@ of '.24 which iS followed by a lons' flat portion 24h causing the lever to remain in this lateral position through the punching and setting operations. As the shaft 22 revolves, the ball 25 is acted on by a raised portion 23a of cam 23 so that the punch iS lnoved downward for punching, it being understood that for this operation the punch-block to be presently described is nicely adjusted relative thereto so that the punch bites a hole in the material. During this operation the punch is held positively advanced by the lever 2 9 engaging v its head 1S under the action of cam 34, and as shown `during its descent it takes an eyelet from an eyelet raceway or chute 36 and the flanged end of the eyelet presently comes to position against the end of the set. The invention is not concerned with any particular means of supplying eyelets portion 34a acted to hold the lever 29 T' against the punch head for the punching, here drops back as seen at 34b so that this lever is no longer held against the punch but is withdrawn by the spring 35 and the punch is permitted to telescope in the set as the set acts, this telescoping being of course against the resistance of spring 19, During the described punching and setting operations the lever end 15 has remained in the same lateral position under the action of the plane cam portion 24h but after the setting is completed a downwardly inclined cam portion 24C permits the spring 27 to move the lever end 15 until it comes against a. stop 37 which is formed as an adjustable screw threaded in a bearing post 3S. It is to be understood that this lateral movement of the lever end 15 is the feeding movement and that the adjustment of the stop 37 which thus determines the extent of such movement, in this way determines the spacing of the eyelets which can thus be varied as required. Before this lateral feed movement occur-s the cam 23 drops back from the raised setting portion 23h,

to a portion of the same, or very slightly lower elevation than that of the punching raise 2l as indicated at 23C, thel purpose of this being to permit withdrawal of the set but to retain the punch engaged through the wor-lr as yieldingly held by the spring 19 which holds the punch engaged in the eyelet hole while the set recedes thereover. As the spacing is thus completed and the ball 25 comes upon a lower fiat portion 24d,l

of the cam 24, it also comes to the farther lowered portion 23d of cam 23 which permits raising of the punch out of the work and above the eyelet raceway to initial position. While in this position the lateral cam incline.24a acts to shift the lever end 15 laterally and again bring the parts to punching position thus completing the cycle of operation.

It will be understood that the described organization of parts requires the punching and setting to be performed at the same position so that the punch-block is located within the concave annular formation which constitutes the clenching surface and in a sense superposed thereon. It is possible to have this punch-block formed on the same element which constitutes the clenching surface and integral or rigid therewith as seen at 46 in Fig. 5. In this case the punch-block consists in a substantially flat surface centrally uprising from the annular concave groove which constitutes the clenching surface and preferably iiush with the adjacent portions of the work support. It is, however, objectionable to have the central punch-block and the surrounding clenching surface formed as component parts of a single face for the reason that thereby such combined clenching surface and punchblock formation would be quickly defaced and rendered unserviceable by excessive wear, and it not being possible with such a formation to have the punch block or the surrounding concave groove which constitutes a clenching surface, of the best form for cooperation with the punch and set respectively. l have therefore devised as an important part of my invention a relatively movable arrangement of the elements which bear the clenching surface and the punchblock surface. To this end in the present embodiment as seen in Figs. 1, 2 and 3, I provide a movable punch-block having operating connections for timed movement over the clenching surface and beneath the punch for the punching, and then back to uncover the clenching surface for the clenching operation. In the preferred embodiment of the invention I show this punch-block in the form of a plate 39 at the end of a spring strip 40 which is carried by alever arm 4l fulcrumed on a vertical pivot 42 and having at its inner end a roller 43 engaging with a lateral face cam 44 on shaft 22; said roller being held against said cam by a tension spring 45 fixed at its ends to the outer portion of said lever to the post 28 respectively. The cam 44 has raised and lowered portions so disposed as to bring the punch plate 39 over the clenching surface, and back to uncover the same alternately at the proper intervals as described. The punch plate 39 is normally held a very little above the clenching surface 46 as indicated in Fig. 3, so

as to freely clear the same in its movements and it will be understood that the face of the clenching surface member 8 around the clenching surface proper and on which the plate 89 is pressed during the punching, will be ground or otherwise finished perfectly smooth so that said plate will accurately seat thereon when pressed thereagainst by the punch. As best shown in Fig. 2 the punchblock or plate 39 is laterally odset from the body of the spring 40 which carries it and it is positioned between the forked ends 47 of a presser foot 48 which extends along in the direction of the feed, with a backwardly projecting spring shank 49 adjustably held by the screw and slot indicated at 50 to the work support block. At 5l a clutch lever is shown pivoted at 52 to the frame work, this constituting part of a suitable stop mechanism which may be what is known as the Horton clutch.

The operation of the mechanism having already been fully explained in connection with the description of the working parts, need not be repeated in detail. The material a is placed in position under the presser foot 48 and against the gage 1l in position so that the descending punch will produce the first eyelet hole in correct position. Thereupon as the machine is started the descending tubular punch catches an eyelet from the raceway 36 which slides thereonto and comes to position with its formed iange against the end 14 of the set. Thereupon as the punch comes upon the material it presses it against the punch plate 89, pressing said plate down upon the top of the clenching surface and punches the hole, it heing understood that the clenching surface member 8 is so adjusted by the adjustment member 5 that the movement of the punch is ust suiiicient to bite out the punching as it is positively pressed forward by the engagement of lever 29 with its top. Thereupon the movement of cam 84 releases the lever 29 from engagement with the punch, so that as the lever end 15 is moved farther downward, the set rigidly carried thereby performs the setting operation while the punch is permitted to recede relative to the set within the saine, while still remaining in the eyelet hole as the eyelet is clenched in the material; it being understood that after the punch is released and before the set descends, the punch plate or block 39 is moved laterally to uncover the clenching surface. Thereupon the set is moved back by the described cam elements while the punch remains yieldingly held engaged in the eyelet hole by the action of spring 19. Thereupon the lateral feeding movement being imparted to the lever end 15, the material is fed and spaced by the action of the punch, the extent of spacing being determined by the position of the stop 37 which may be adjusted to prevent the ver end 15 from having its full swing as permitted by the cam 2li, so that by the adjustment of this stop the spacing may be instantly determined with precision. Then the lever l5 being farther raised to free the punch from the material it is moved bacl to punching position, and the punch plate 39 being again moved over the clenching surface, the cycle of operation is completed. rlhus I am enabled to mount all the working parts on one side of the material support and dispense entirely with the separate spindle-a'nd-set mechanism with its attendant complications. lt is to be understood that the punch by its telescopic combination with the set in conjunction with its lateral movement, takes up the function of the separate positioning spindle heretofore associated with the set, and combines therewith the function of feeding the material by its lateral movement, so that the punch has the three-fold functions of punching the material, serving as a positioning and alining element to insure accurate operation of the et, and as a feeder and spacer. for the eyeets.

While I show herein the punch-block or plate 39 as a movable element shiftable to alternately cover and uncover a stationary clenching surface, it is to be understood that this is merely illustrative as to this feature of the invention in its broader aspects and intended to typify any construction and arrangement wherein there is a relative movement between the clenching surface member and the punch-block, so that these are superposed one over the other for one of the operations of punching and setting, and separated so as to uncover the one previously covered for the other operation.

Having described my invention, what I claim as new and desire to secure by Letters Patent is:

l. An eyeleting machine, comprising a material support equipped with a punchblock and a clenching surface, a telescopically combined punch and set operatively mounted at one side of said support for movement toward and from said support and for bodily lateral movement relative thereto, means for moving the punch to punch a hole and for moving the set to clench an eyelet therein7 and means for then moving the punch laterally while still engaged in the hole of the clenched eyelet to feed the material for spacing the eyelets.

' 2. An eyeleting machine comprising a material support equipped with a punch-block and a clenching surface, a punch and set operatively mounted land connected at one side of said support for punching and setting operations against the same surface portion of said support as a backing, means for moving the punch forward for punching, means for moving the set .forward for clenching the eyelet, and'means for then moving the punch while still engaged in the eyelet hole laterally to feed the material and space the eyelets.

3. An eyeleting machine, comprising a material support equipped with means against which a punch may act and an eyelet be clenched, a telescopically combined punch and set operatively mounted at one side of said support, means for positively moving the punch against said support for punching, means for positively moving the set forward for clenching the eyelet, said punch moving means being then released, means for yieldingly holding the punch in the eyelet hole, and means for then moving the punch laterally while still engaged in said hole to feed the material and space the eyelets.

4. An eyeleting machine, comprising a material support equipped with means against which a punch may act and an eye: let be clenched, va telescopically combined punch and set operatively mounted at one side of said support, means for positively moving the punch to act against said support as a backing for punching, means for positively moving the set forward for clenching the eyelet, said punch moving means being then released, means for yielding-ly holding the punch in the eyelet hole, and means for then moving the punch laterally while still engaged in said hole to feed the material and space the eyelets, said means against which the punch acts being connected for movement;` -relative to said clenching surface whereby it is positioned over the clenching surface and beneath the punch for the punching and removed to uncover the clenching surface for the setting operation.

5. An eyeleting machine, comprising a material support, a punch and set mounted and operatively connected for punching and setting operations respectively against the same surface portion of said support as a backing, said support having parts presenting a punch-block face and 'a clenching surface face respectively and means to move said parts relatively to each other in timed relation to the punch and set movements so that one of said parts is -superposed on the other of said parts for one of said operations, and removed to uncover the face of the other part for the other of said operations.

6. An eyeleting machine, comprising a punch and set telescopically combined and. having means to receive movement for punching and setting operations, a material support over which the. material is adapted to slide and against which said punch and set operate having parts presenting a punchblock face and a clenching surface f ace respectively, and means for moving said parte of said material support relatively to each other so that one is superposed on the other to cover the same, for one of said operations, and removed to uncover the saine for the other of said operations.

7. An eyeleting machine, comprising a punch and set telescopically combined and having operative connections to receive movement for punching and setting operations, a material support over which the material is adapted to slide and against Which said punch and set operate having a fixed clenching surface and a movable part presenting a punch-block surface, there being means for moving said movable part of said material support in timed relation to the punch and set movements so that it covers said clenching surface of the material support and is positioned opposite the punch during the punching operation and uncovers the clenching surface for the setting operation.

S. An eyeleting machine, comprising a material support, and a punch and set mounted and operatively connected for punching and setting operations respectively against the same surface portion of said support as a backing, said support having a fixed clenching surface, and a movable part presenting a punch-block surface, said movable part being formed as a spring held plate normally positioned clear of said clenching surface with connections to be moved thereover beneath the punch for the punching operation, and removed to uncover said clenching surface for the setting operation.

9. An eyeleting machine, comprising a material support, a punch and set operatively mounted at one side of said support to act against the same transverse portion thereof, and means for imparting punching and setting movements to the punch and set respectively, said material support having a clenching surface to cooperate with said set consisting in an annular concave groove formed in a flat face of said support, and a pu'nchblock consisting in a plate mounted to move for covering and uncovering said clenching surface While held adjacent thereto, said punch block plate having operative connections for movement in timed relation to said punch and set.

10. An eyeleting machine, comprising a material support, a punch and set telescopically combined and operatively mounted for punching and setting movements toward and from said support and also for movement laterally thereof, means for imparting punching and setting movements to the punch and set respectively, and means for imparting bodily lateral movement thereto at intervals for feeding the material to space the eyelets and for returning the parts to initial position, there being an adjustable stop element to terminate said lateral spacing movement at variable points at Will and thus determine the eyelet spacing.

1l. An eyeleting machine, comprising a material support, a set having a mounting for movement toward and from the face of said support for setting operations, means for imparting such movement, a punch slidably fitted in said set With its operative end normally projecting therefrom, and separate means for holding the punch advanced for punching having provision to release the punch to permit relative telescoping thereof With the set as the set operates, said mounting for the set being formed and having operative connections to impart periodic lateral movement for feeding the material and spacing the eyelets.

12. An eyeleting machine, comprising a material support, a lever having an end eX- tending over said support with a fulcrum mounting permitting movement toward and from the face of the support and also movement laterally thereof, a hollovv set fitted in said lever end, a punch slidably fitted in said set with its operative end normally projecting therefrom, a spring connected to yieldingly hold the punch so advanced, a separate lever mounted for an arm thereof to engage the punch to positively hold it advanced for the punching, operating means for the last named lever having provision to permit recession thereof for the punch to telescope relative to the set as the set operates and a single drive shaft having means for imparting'all of said movements.

In testimony whereof, l have signed my name to this specification, in the presence of two subscribing Witnesses.

FRANK L. HARMON.

Witnesses:

CLYDE L. ROGERS, LOUISE A. JORDAN.

Gopies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C. 

